Chapter 33: Found It
After discussing some issues, Liu Feng continued to focus on the experiment.
As the temperature continued to rise, Liu Feng observed more and more side reactions.
After an hour, although there was still no substantial progress in the results, he became more and more comfortable with the use of his abilities in chemical experiments.
Finally, when the reaction temperature rose to 120°C, he discovered a new compound.
This is a compound with a complex structure, and Liu Feng observed them carefully and found that they have several benzene rings in series...... Obviously, the structure of the target compound is exactly the same!
The target compound is finally being synthesized!
This is an important temperature node! Liu Feng recorded this temperature with a brush, and at the same time, a burst of joy of harvest arose.
"Two junior brothers, the lunch box at noon has been delivered to the outside office, you can take the time to eat it yourself!" The experiment was at a critical moment, but the people who were serious about doing things had no concept of time.
Liu Feng looked at his watch, it was more than 12 o'clock, but he didn't expect that half a day in the morning would have passed like this, if it wasn't for the reminder of his senior brother, he really didn't feel a little bit.
sighed, and sure enough, when you do things seriously, time flies the fastest.
At this time, his stomach growled angrily, controlled the temperature at 120 °C, reacted slowly, and then the goods were the first to run to the office and gobble up the box lunch.
After all, a person who is not active in eating will never become a college bully, and besides, if he is not full, he will have the strength to work.
", buddy, so soon, you're in a hurry to reincarnate!" Chen Hongzhi finished packing up his things, washed his hands, and was about to come out of the laboratory, when he bumped into Liu Feng as soon as he arrived at the door, and couldn't help complaining about this guy.
"Haha, I'm sorry, I'm in a hurry after eating, basic operation, basic operation. Liu Feng looked at his watch, well, fortunately, it was only delayed for 2 minutes.
Wen Ruonan, who was in the back, happened to finish packing his things, and seeing that Liu Feng had solved lunch so quickly, and was only concerned about doing experiments, he couldn't help but look up at this guy.
Originally, she thought that this product was so positive about eating, and her attitude towards work can be imagined, but she didn't expect it to be like this, and it hasn't been for two minutes!
Workaholic?!
Well, no, it's definitely not used to eating a boxed lunch!
Delicate guys!
Liu Feng didn't care what a few people thought of him, he ran to the experimental table by himself and continued to heat up.
Starting from 120°C and gradually reaching 130°C, he found a pattern - the proportion of target products almost shows a linear relationship with the increase of temperature!
In other words, the proportion of the main reaction in all reactions increases with the increase in temperature during this temperature range.
The influencing factors that the senior brothers wanted to find were found by him!
Liu Feng was excited.
Could it be a coincidence?
No way!
Liu Feng shook his head with certainty, because he obviously observed that when the temperature reached 130°C, the synthesis rate of the target compound had reached its peak, and at the same time, although other side reactions still occurred, the reaction speed was obviously not up to the speed of the main reaction.
At the same time, as the reaction temperature continues to rise, the reaction speed of the side reaction finally gradually exceeds that of the main reaction, and the linear relationship just now is completely destroyed, even if the speed of the main reaction continues to rise, it is obviously faster than the rise rate of the side reaction, and on the whole, the proportion of target compounds is decreasing!
It's it, that's it!
Liu Fengqiang held back the excitement in his heart, and the tip of the pen quickly calculated on the scratch paper.
At 130°C, the proportion of the main reaction is as high as 65%!
Hahaha, 65%!
What does this mean!
This means that he has a 3 times higher final yield than his senior brother!
The side reactions caused by the other two raw materials add up to only 35%!
Therefore, Liu Feng can conclude that 130°C is the best reaction temperature he is looking for!
Liu Feng danced excitedly.
It's no wonder that the yield of the senior brother is not as expected, it is obvious that in the area of temperature control, their design value is too high!
Liu Feng recorded the temperature and reaction ratio with trembling hands.
At this moment, not only because he found what his senior brother was looking for, but also because he found the direction in which his ability could be developed!
To be honest, in fact, the setting of the senior brother is very reasonable.
Because, theoretically, the main reaction is an addition reaction, which can be reacted as long as the temperature is sufficient, there is no specific standard, but what about several of the main side reactions?
In the range of 120°C~170°C, it happens to be their optimal reaction temperature, therefore, in order to control the occurrence of side reactions, when designing experiments, they will definitely not consider the temperature in this range, and in terms of low temperature, the main reaction will not be carried out if it is too low, so it can only be designed in the direction of high temperature.
"Luck, luck!"
Liu Feng couldn't help but sigh at his luck.
If it weren't for him, even if he had to design this experiment himself, I'm afraid he would have designed such a high temperature. However, it is unbelievable to be able to find the temperature range with the highest yield of the target product in such a temperature range that is not considered in theory!
Liu Feng couldn't help but sigh with emotion, chemistry is really a complex experimental science, and no matter how smart a person is, it is impossible to take all the conditions into account, so there are so many great coincidences and accidents.
Fleming stumbled upon penicillin because the experimental equipment was not cleaned, Fachberg forgot to wash his hands before eating and ate with a sweet taste, and randomly discovered saccharin; Plankett accidentally invented tetrafluoroethylene......
A series of great inventions were created so inadvertently, and the inventors who created them were also great scientists.
Therefore, in the same way, Liu Feng also inadvertently found the best reaction temperature for the experiment, so he is also a great scientist, cough~
This is the end of the experiment.
Although the senior brother asked Liu Feng to raise the temperature to 180°C, there was no need to spend his energy on using ability observation in the subsequent experiments.
180°C, according to this reaction temperature continues, the final yield can be obtained, can be 20%, it is very good!
Then, the joy of achieving the goal of the experiment faded in an instant, and a new problem appeared that plagued Liu Feng, causing his heart to be at war with heaven and man.
Do you want to inform your senior brother of the results of your hanging? What a headache!
You're a temporary worker, just do your own experiments, turn a blind eye, there's no need to make a fuss!
You are also a researcher, how can such a scientific thing be regarded as invisible!
The two very different attitudes are like two evenly matched killers fighting each other in his mind.
In the end, well, good finally triumphed over evil.
As a great scientist, he absolutely cannot tolerate mistakes happening, and he must not let them continue to be wrong on this wrong path!
Although the part-time fee given to him by the senior brother is only 100 yuan, although he said that he may not have any material reward, although it ...... But who made him so kind?
O stupid human, I am a good angel who is coming to save you from the abyss!
Liu Feng raised his neck proudly, looking at the few people who were still struggling, and the spirit of who would compete with each other rose in his heart.
However, there is another question here, why should people believe him, and how can he prove that what he says is right?
Do you want to say to my senior brother, senior brother, you should trust me, because I found it by hanging up!
MMP!
Defect!
Idiots will believe it!
Call~
Liu Feng took a deep breath and calmed down his fluctuating mind, feeling that it was a stupid act to speak directly.
Maybe if he was the person in charge of the experiment, he would have reversed the experiment without saying a word.
But unfortunately, he is only a part-time worker now, and he is also a temporary worker!
People are light-hearted!